Locomotive driver box



Jan. 9, 1 J. HENNESSY LOCOMOTIVE DRIVER BOX Filed Oct. 1l, 1928 2 Sheets-Sheet 1- da Il' Z5 /g /QT 7.01? wir Jan. 9, 1934. v J. J. HENNESSY 1,942,963

LOCOMOTIVE DRIVER BOX Filed Oct. 1l, 1928 l 2 Sheets-Sheet 2 .ZN VEN f@ l? Patented `lan. V9, 1934 UNITED STATES PATENT OFFC This application forms a continuance in part of my copending application, Serial No. 212,917, filed August l5, 1927.

My invention relates to railway rolling stock and consists in a journal box especially adapted ior use on locomotive driver journals.

The main object of my invention is to provide a bearing adapted to resist horizontal thrusts as Well as vertical loads; to maintain long life by rotation of the bearing in the box so that the elements of the bearing are presented to the journal in different directions at different times; to facilitate rotation of such a bearing in the box; to provide for adequate lubrication of the bearing; and to facilitate assembly and disassembly of the journal and box and of the bearing elements and the journal.

In the accompanying drawings which illustrate a selected embodiment of my invention- Figure l is a vertical section through a driver box to which my invention is applied, the journal being shown in elevation and a portion of the wheel hub being indicated.

Figure 2 is a Vertical transverse section taken approximately on the line 2 2 of Figure 1.

Figure 3 is a side elevation of the structure shown in Figure 1.

Figure 4 is a section taken on the line 4-4 of Figure 3, some of the parts being broken away for better illustration.

Figure 5 is an elevation of the box looking towards the inner end of the same, the journal being sectioned.

The body of the box has an exterior contour corresponding to that in general use, being provided with ilanges 1 for engaging the pedestals oi the frame. The box has a top wall 2, a side wall 3, a bottom wall 4, and another side Wall 5 which is provided with an opening from end to end of the box through which the axle journal J may be passed laterally or transversely of itsaxis A which I will hereafter refer to as the axis of the box also. This opening in the side wall 5 is closed by a detachable member 6 having a tongue and groove connection, as indicated at 7, with the opposed faces formed on side wall 5. Suitable lugs S and 9 are provided on the box wall and member 6, respectively, and pins 10 are applied to lugs 8 to hold the parts in assembled position.

A transverse member 11 extends across the lower portion of the box and forms a top wall for a lubricant reservoir 12 and also forms a part of the circular interior of the box on which the bearing elements are mounted.

One of these bearing elements comprises a split sleeve bushing 13, preferably formed of hardened steel and tapered lengthwise of the box. The box interior is correspondingly tapered whereby movement of the split bushing 13 length- 51;, wise of the box will adjust the same to and from the journal.

The other bearing element comprises a split collar 14 of bronze or other relatively soft metal, the parts of which are supported against the G5 journal by the split bushing 13. Collar 14 extends beyond the front face l5 of the box and is provided With a radial flange 17 extending parallel with and adapted to be engaged by the inner face of the hub 18 or the wheel mounted 70 upon the journal.

With this construction the contact of the hub with flange 17 will frictionally engage the collar 14 to rotate it at intervals thereby changing the position of the elements about the journal and more evenly distributing the wear on the bearing than is the case where the frictional engagement of the collar by the journal itself is relied upon to rotate the collar.

Preferably, I utilize an anti-friction bearing between flange 17 and the front face 16 of the journal box. This anti-friction bearing may be of any ball or roller type and I show raceways 19 formed in the outer face of the box and a race member 20 seated in a suitable recess provided therefor on flange 17. The ball elements 21 may be held in position between the raceways by any suitable spacing device 22. The spacing device and the race member 20 will be split so that the anti-friction bearing can be applied to the collar 14 when the same is assembled with a journal.

A dowel pin 23 on the interior face of the box fits into a suitable slot 24 formed on sleeve 13 and prevents rotation oi the latter.

The inner face of sleeve 18 is grooved as indicated at 25 to receive an oiling chain 26 which passes through suitable openings 27 therefor provided in the upper wall 11 of the reservoir 12. Rotation of the journal bearing bushing 14 will cause chain 26 to elevate oil to the top surface of the bushing and it will be understood that the latter is perforated, as best shown in Figure 2, to permit thorough distribution oi" the lubricant to the journal.

Split sleeve 13 is held in position by a ring' shaped member 28 secured to the back of the box by suitable screws S and provided with flanges 29 which fit into the box and Contact with the inner end of sleeve 13. Preferably, the inner end of the box is cylindrical in contour so that flanges 29 may have sliding contact with the same. Member 29 forms an oil retainer and includes a pocket 30 for collecting surplus oil which may drain to the rear of the bearing. .An additional oil ,guard 33 is mounted on the journal inside of member 28.

A suitable passage 31 is provided in the lower portion of ilange 29 and through reservoir wall l1 for the purpose oi draining lubricant collecting in pocket 30 back to the reservoir. In order to accommodate adjustment of member 29 lengthwise of the box, the drainage passageway through member 29 is enlarged as indicated.

At 32 I show a member for lling the reservoir with lubricant.

The split sleeve 13 and the bearing collar 14 may each be formed of more than two parts, if desired, and the parting lines may extend diagonally o the journal as well as longitudinally thereof. Obviously the anti-friction bearing device and the mounting of the same and other details of my construction may be modified Without departing from the spirit of my invention and I contemplate the exclusive use of such variations in structure as come within the scope of my claims.

I claim:

1. In a locomotive driver box structure, a split cylindrical collar for the journal provided with a radial flange for eng ng the 'nnb of wheel j ournalled in said box, and an anti-friction bearing device between flange and the iront face of the box, said device being split to provide for application thereof to the bearing while it is assembled with a journal. p

2. In a locomotive driver box, a journal bearing element, a lubricant reservoir including a top wall positioned below said bearing element, and a removable side wall for the box detachably mounted on said reservoir top wall.

3. In a locomotive driver box, a journal bearing element, a lubricant reservoir including a top wall located below said bearing and forming a seat therefor, and a removable side wall for the box detachably mounted on said reservoir top wall and forming a seat .for said bearing element.

4. In a locomotive driver box, a journal bearing, a sleeve surrounding said bearing and having an exterior surface inclined from the axis of the box, a box wall similarly inclined and supporting saidsleeve andhavinga cylindrical extension projecting beyond the end oi said sleeve and of larger internal diameter than the external diameter of said sleeve, a ring for closing the end of the box having a cylindrical flange tting in said extension and adjustable therein and engaging said sleeve to hold the same in posi on on said inclined wall.

5. In a locomotive driver box, a journal bearing, a sleeve surrounding said bearing and having an exterior surface inclined from the axis of the box, a box wall similarly inclined and supporting said sleeve and having a cylindrical extension projecting beyond the end of said sleeve and of larger internal diameter than the external diameter of said sleeve, a ring for closing the end of the box and having a cylindrical ange tting in said extension and adjustable therein and engaging said sleeve to hold the saine in position on said inclined wall, a lubricant reservoir below said sleeve, said ring being provided with a lubricant pocket, there being a drainage passage leading from said pocket to said reservoir.

6. In a locomotive driver box, a journal bearing, a sleeve surrounding said bearing and adjustable lengthwise of the box, a lubricant reservoir below said sleeve, and a ring member for closing the end of said box and adjusting the position of said sleeve, the lower portion of said ring forming a lubricant pocket, there being a passage through the top wall of said reservoir adjacent to said ring member, said ring member having an elongated opening over said passage to connect said pocket with said passage through out longitudinal adjustment of said ring and sleeve.

7. In a locomotive driver box, a side wall having an'opening from end to end through which an axle journal may be passed transversely of its axis, a removable closure for said opening having a tongue and groove joint therewith extending longitudinally of the box, lugs on said box and closure projecting outwardly therefrom, and adapted to be aligned with each other, and removable pins in said lugs for holding said closure in place in said box.

8. Inl a locomotive driver box, a journal bearing element, a lubricant reservoir in the lower part or" the box including a top Wall positioned below said bearing element, and a removable side wall for the box detachably mounted above said reservoir.

9. In a locomotive driving box, aside wall having an opening through which an axle journal maybe passed transversely, a closure for said opening, and a bearing sleeve formed of a plurality of sections and overlapping the joint between said closure and the remaining portion of said side wall.

li). In a locomotive driving box, a side Wall having an opening through which an axle journal may be passed transversely, a closure for said opening, a bearing sleeve formed of a plurality of sections and overlapping the joint between said closure and the remaining portion of said side wall, and a journal bearing in said sleeve for substantially surrounding a journal.

ll. In a locomotive driving box, interior Walls tapered longitudinally of the box, a correspondingly tapered sleeve formed in a plurality of sections, a journal bearing housed in said sleeve, a collar for surrounding the journal and engaging the larger end of said sleeve and adjustably connected to the end of said box, there being an inner annular groove in said collar, and an oil retaining ring in said groove.

l2. In a locomotive driving box having an exterior corresponding to ordinary driving box construction so the box may be substituted for ordinary boxes, a side wall slidably removable longitudinally of the box and arranged to receive axle thrusts, a journal surrounding collar removably attached to one end of said box, and journal bearing members for substantially surrounding a journal and removable through an end of said box when said collar is removed, whereby an axle journal may be applied to and removed from said box transversely of its length.

i3. In a locomotive driving box, interior Walls tapered lengthwise of the box, a sleeve lining said box and tapered correspondingly and having a cylindrical interior, means for adjustingv the position of said sleeve longitudinally of the box, a cylindrical journal bearing rotatably mounted in said sleeve, and means for feeding lubricant between said sleeve and bearing and between said bearing and a journal therein.

JAMES J. HENNESSY.

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